There has been a lot of jumpy meter action on WGT and a Shot Undo button might be an excellent suggestion. I realize that it's not something we get the luxury of in the real world, but let's face it, this isn't the real world (that's why you currently have a 67 avg, buddy!!)
With a maximum of maybe two "undos" per match, a player has the option to belay his last on the inevitable meter hiccup or "finger fart" which eliminates a lot unneccessary profanity (at least on my part!)
Something to consider.
ameyzing1